The mistakes I did was that I measured the distance to the last checkpoint to short and that I somehow forgot to do the TAS (true air speed) to KIAS calculation. calculate the time I should pass each of the checkpoints from the air speed and distances using the flight computer and jot them down beside the checkpoints.ĭo notice the lack of minute marks. measuring the distances by "copying" them using the divider and measure them against the graduation along the meridians (to do it against the parallels would indicate longer distances towards the poles), and finallyĥ. marking easily recognizable checkpoints along the track,Ĥ. jotting down the true track and back track along with magnetic track and backtrack calculated using readings from the closest isogonic line (showing the magnetic deviation along that line),ģ. Plotting the track using the pen and the protractor,Ģ. The steps taken when preparing the map was:ġ. The cruise altitude is 1000 ft AGL (above ground level) and the cruise speed 180 KIAS (knots indicated air speed). This time I cheated though, having "Real wheather", which would have updated the weather on regular intervals using fresh weather data ( METAR), turned off. Specially when I manage to pass the checkpoints on time. I have not done this in a while, but have some nice memories from doing similar things in the past. Preparing for a short VFR flight from N'Djamena (ICAO code FTTJ) to an airstrip outside Dourbali and back using pjedvajs Pilatus PC-9M in FlightGear 2.4.0 (an open source flight simulator).
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